2015-16 (Redshirt Freshman): In the 50 Free, Peterson ended the year with a 21.79 at the MPSFs. He also swam the 100 Fly and the 100 Free while there. In the 100 Fly, Peterson had a time of 55.91. In the 100 Free, he put up a 48.55.

2014-15 (Freshman): Peterson was a medical redshirt during his first year at Pacific.

High School: As a part of the swim team at Juanita High School, Peterson finished fifth in the State 3A championship in the 50 Free in 2013 and sixth in 2014. He set a Juanita High School record in the 50 Free in 2013. Peterson was also a Cambridge Honors graduate and a National Merit Commended Scholar.

Personal: Peterson is a native of Kirkland, WA. The son of Bruce and Julie Peterson, he has two sisters: Nicole, 33, and Natalie, 17.